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AD5254BRU10-RL7 Folha de dados(PDF) 9 Page - Analog Devices

Nome de Peças AD5254BRU10-RL7
Descrição Electrónicos  Quad 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD5254BRU10-RL7 Folha de dados(HTML) 9 Page - Analog Devices

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AD5253/AD5254
Rev. 0 | Page 9 of 28
PIN CONFIGURATION AND FUNCTIONAL DESCRIPTIONS
AD5253/
AD5254
TOP VIEW
(Not to Scale)
W0
1
B0
2
A0
3
AD0
4
5
W1
1
B1
2
A1
3
SDA
4
VSS 5
VDD
W3
B3
A3
AD1
10
9
8
7
6
DGND
SCL
W2
B2
A2
10
9
8
7
6
WP
Figure 2. AD5253/AD5254 Pin Configuration
Table 5. AD5253/AD5254 Pin Function Descriptions
Pin
No.
Mnemonic
Description
1
W0
Wiper Terminal of RDAC0. VSS ≤ VW0 ≤ VDD.
2
B0
B Terminal of RDAC0. VSS ≤ VB0 ≤ VDD.
3
A0
A Terminal of RDAC0. VSS ≤ VA0 ≤ VDD.
4
AD0
I2C Device Address 0. AD0 and AD1 allow four AD5253/AD5254s to be addressed.
5
WP
Write Protect, Active Low. VWP ≤ VDD + 0.3 V.
6
W1
Wiper Terminal of RDAC1. VSS ≤ VW1 ≤ VDD.
7
B1
B Terminal of RDAC1. VSS ≤ VB1 ≤ VDD.
8
A1
A Terminal of RDAC1. VSS ≤ VA1 ≤ VDD.
9
SDA
Serial Data Input/Output Pin. Shifts in one bit at a time on positive clock CLK edges. MSB loaded first. Open-drain
MOSFET requires pull-up resistor.
10
VSS
Negative Supply. Connect to 0 V for single supply or –2.7 V for dual supply, where VDD – VSS ≤ +5.5 V. If VSS is used,
rather than grounded, in dual supply, VSS must be able to sink 35 mA for 26 ms when storing data to EEMEM.
11
A2
A Terminal of RDAC2. VSS ≤ VA2 ≤ VDD.
12
B2
B Terminal of RDAC2. VSS ≤ VB2 ≤ VDD.
13
W2
Wiper Terminal of RDAC2. VSS ≤ VW2 ≤ VDD.
14
SCL
Serial Input Register Clock Pin. Shifts in one bit at a time on positive clock edges. VSCL ≤ (VDD + 0.3 V). Pull-up resistor
is recommended for SCL to ensure minimum power.
15
DGND
Digital Ground. Connect to system analog ground at a single point.
16
AD1
I2C Device Address 1. AD0 and AD1 allow four AD5253/AD5254s to be addressed.
17
A3
A Terminal of RDAC3. VSS ≤ VA3 ≤ VDD.
18
B3
B Terminal of RDAC3. VSS ≤ VB3 ≤ VDD.
19
W3
W Terminal of RDAC3. VSS ≤ VW3 ≤ VDD.
20
VDD
Positive Power Supply Pin. Connect +2.7 V to +5 V for single supply or ±2.7 V for dual supply, where VDD – VSS ≤ 5.5 V.
VDD must be able to source 35 mA for 26 ms when storing data to EEMEM.


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